Stereotype-block.



No. 772.453. PATEN'TED OCT. 18, 1904.

' F. A. BERRY.

STEREOTYPB BLOCK.

APPLICATION FILED JULY 27,1904. N0 MODEL. 2 SHEETS-SHEET 1.

/ m/7*//////////////////// /Wm No. 772,453: PATENTED OCT. 18, 1904."-

r. A. BERRY.

STEREOTYPE'BLOGK. I AYPLIULTIOH FILED JULY'Q'L1904.

NO. MODEL. nuns-sum a.

are. 772,453. I

UNITED STATEs Patented October-.18, 1904.

PATENT- OF ICE.

FRANOK A. BERRY, OF MEDFORD, MASSACHUSETTS, ASSIGNOR TO THE TYMPALYNCOMPANY, OF BOSTON, MASSACHUSETTS, A CORPORA- TION on MAINE.

STEREOTYPE-BLOCK.

SPECIFICATION forming part of Letters Patent No. 772,453, dated. October18, 1904.

Application filed ly 27, 1904. Serial No- 218.332. (No model.) A

1'0 all whom it may concern:

Be it known that I, FRANOK A. BERRY, a

citizen of the United States, residing at Medford, county of Middlesex,and State of Massachusetts, have invented an ImprovementinStereotype-Blocks, of which the following description, in connectionwith the accompany ing drawings, is a specification, like letters on thedrawings representing like parts.

The present invention relates to stereotypeblocks for holdingstereotype-plates, such as are used by printers in book and other likepresses, and is an improvement upon my invention described and claimedin Patent No. 764,517, granted July 5, 1904. i

The object of the present invention is to improve the means for clampingor looking the dog and carrier" together preliminary to the clamping orlocking of the dog against the stereotype-plate, and the invention willbe more fully defined in the appended description 'and claims. 7

The invention is illustrated in the accompanying drawings, in whichFigure 1 shows atop plan viewof'the block with a plate in positionthereon and held by the clamping-dog s. Fig. 2 is a partial sectionalview of the block shown in Fig. 1, taken on the line w m, with. theclamping-dog moved backwardly. Fig. 3 is a bottom plan view of thestereotype-block, showing the construction of the parts.

The general construction and operation of the device is the same as thatset forth in the aforesaid Patent No. 764,517, to which reference ishereby made for a more complete description. Y

The block a of the usual oblong shape and preferably formed from a metalcasting com prising a top b, with the plate-holding flanges 6, sideflanges 0i, and reinforcing strengthening-ribs d, in which ribs andflanges operating parts are seated, the cam-bars s 8 with the carrieroperating cam-surfaces s thereon, thepost p for operating the cam-barsand connected therewith by means of the links 2," t

, are all as shown in the said Patent N o. 764, 517.

The block ais provided with a series of slots it, in which theclamping-dogs g are located and slide. The slots and clamping-dogs areherein shown-as three in number, two clamping-dogs being arranged at thelong edge of the plate and another at the short edge, al-

to the carriers, and the continued movement' of the carrier then lockedor clamped the dogs against the edge of the stereotype-plate. In thepresent invention I do away with any tipping or inclining of the,clamping-dogs with respect to the carrier.

The clamping-dogs g comprise an arm 9, resting in the groove it andflush with the top of the block and provided with a head g projectingabove the block and formed with an inclined face to come in contact withthe edge of the stereotype-plate. The dogs are also provided with adepending shank 9 having an opening 9 therethrough.

The carrier for each dog is made expansible, so as to expand and gripthe opposite sides of the opening g in the dog without tipping orinclining the dog, but looking or clamping the dog and carrier firmlytogether, so that upon the continued movement of the carrier the dogwill move therewith and lock or clamp the stereotype-plate. The carrieris herein shown as composed of two oppositely-wedgeshaped'parts is 7 andthey are preferably vertically arranged. When the parts of the tion, asshown in Fig/2, the opening g in the dog is of such size that the dogmay be slipped easily back and forth over the carrier, and in this waythe preliminary adjusting movement of the dog to bring it up against theedge of and slide in bearings in the side flange 0.

the stereotype-plate is given. In order to lock or clamp the dog to thecarrier, one of the wedge-shaped parts of the carrier is given a slidingmovement, which serves to expand the carrier until the parts of thecarrier grip tightly the walls of the opening g" in the dog. To insurethe gripping of the dog by the carrier, I preferably form oneclamping-surface with teeth or corrugations in" and form in thecorresponding face of the opening g in the dog a cooperating part,herein shown as a tooth The parts of the carrier are preferably reducedat the inner ends is it and enter and slide in a bearing-opening m inthe depending flange (Z. Located in the opening m is a coiled spring a,which serves to retract both parts of the carrier when the dogs areunlocked or unclamped from the stereotypeplate. The opposite ends of theparts of the carriers are also preferably reduced at 71: 75 As in theaforesaid Patent No. 764,517, I provide for a yielding connectionbetween the carriers and the operating cam-bars. This connectionconsists in asmall spring y, seated in a recess in the end of thecarrier and bearing against a block M, which projects in contact withthe cam-bar s or .9

The operation of the device will be obvious from the foregoingdescription. With the cambars in the position shown in Fig. 3 and withthe carriers in their normal retracted and contracted position, as shownin Fig. 2, the stereotype-plate f is placed in position against theflanges e, as shown in Fig. 1. The dogs 9 are then slipped along in theslots h until their heads 9 come against the edges of thestereotype-plate. The post p is then turned by means of a suitable key,causing the cam-bars s and s to slide simultaneously and the cambars 8simultaneously to act against the followers thus causing an inwardmovement of the parts of the carrier. The inward movement of the parts70 of the carrier causes this part to slide along the part 70 and theconsequent expansion of the carrier and the gripping of the dog in theopening The continued movement of the cam-bars s 8 causes the two partsof the carrier locked to the dog to have a further movement, which byreason of the interposition of the spring-pressed follower g between thecam and the carrier is yielding, and this continued movement locks orclamps the dogs firmly against the edge of the stereotype-plate andholds it in place, the yielding connection allowing for any inequalitiesin the preliminary adjustment of the dogs in the edges of thestereotype-plate or in the lost motion of the cam-bars. It will thus beseen that the clamping-dog is brought into position without being tippedor inclined.

Changes in the construction of the carrier, whereby it is renderedexpansible to grip the dogs, may be made without departing from thescope of this inventiomfor I believe that I am the first to provide anexpansible carrier for the dog.

One part of the carrier, as U, is held within the block by means of thecam-bar, and it may be necessary, depending upon the construction, toprovide some particular means for maintaining the other part, as l",within the block. To this end I show a stop-pin F in the cam part It,which abuts against the edge of the block and limits its outwardmovement.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. A stereotype-block comprising a carrier mounted therein, aclamping-dog preliminarily adjustable along said carrier, means forexpanding the carrier to grasp the dog, means for imparting looking orclamping movement to said carrier and dog.

2. A stereotype-block comprising a multipart carrier mounted therein, aclamping-dog preliminarily adjustable along said carrier, means forrelatively moving the parts of the carrier to expand the same andthereby grasp the dog,means for imparting locking or clamping movementto said carrier and dog.

3. A stereotype-block comprising a carrier mounted therein, said carrierbeing composed of two oppositely-wedge-shaped parts movable the one uponthe other, a clamping-dog having a depending shank with an openingtherein for the carrier, whereby the dog may be preliminarily adjustedalong the carrier, means for moving one part of the carrier upon theother to cause the carrier to expand and grasp the opening in the shankof the dog, means for imparting a locking or clamping movement to saidcarrier and dog.

4:. A stereotype-block comprising a carrier mounted therein, saidcarrier being composed of two oppositely-wedge-shaped parts movable theone upon the other and provided on one exterior face with teeth orcorrugations, a clamping-dog having a depending shank with an openingtherein for the carrier whereby the dog may be preliminarily adjustedalong the carrier, a tooth or projection in said opening for cooperatingwith the teeth or corrugations on the carrier, means for moving one partof the carrier upon the other to cause the carrier to expand and graspthe opening in the shank of the dog, means for imparting a locking orclamping movement to said carrier and dog.

5. A stereotype-block comprising a series of carriers mounted therein, aclamping-dog for each carrier preliminarily and independently adjustablealong said carrier, means for simultaneously expanding the carriers tograsp the dogs, and means for simultaneously imparting looking orclampingmovement to said carriers or dogs.

6. A stereotype-block comprising a series of carriers mounted therein, aclam1')ingdog for each carrier preliminarily and independently a seriesof clamping-dogs each having a depending shank with an opening thereinfor its respective carrier, whereby each dog may be preliminarily andindependently adjusted along its carrier, means for simultaneouslymoving one part of each carrier upon the other to cause each carrier toexpand and grasp the.

opening in the shank of its dog, means for simultaneously imparting alooking or clamping movement to said carriers and dogs.

8. A stereotype-block comprising a series of carriers mounted therein,each of said carriers being composed of two oppositely-wedgeshaped partsmovable the one upon the other,

a series of clamping-dogs each having a depending shank with an openingtherein for its respective carrier, whereby each dog may bepreliminarily and independently adjusted along its carrier, means forsimultaneously moving one part of each carrier upon the other to causeeach carrier to expand and grasp the opening in the shank of its dog,means for simultaneously imparting a looking or clamping movementto saidcarriers and dogs, comprising yielding connections between said meansand each of said carriers. v

In testimony whereof I h ave signed my name to this specification in thepresence of two subscribing witnesses.

FRANGK A; BERRY.

- Witnesses: GEO. W. GREGORY,

MARGARET A. DUNN.

